Winch structure



All@ 17, 1943. y D. B. LIVINGSTON 2,326,785

l WINCH STRUCTURE Filed June l2, 1941 26 2.6' 'ya Egal 1;'310 r Isnvcntor Gtiorncgi Patented Aug.. 17511-94137.

wmeiismoc'ronpf iriverition i construction', perticularly-adante Ict w uses, since it combines adequatemeehanicslycb vantageY with Sensitivity vof control in thecoueplingoi the drums to their shoftst Y The usual marine winch installatiox'iccmprses a pair ofclrumssuppotted -by' a eommonidrve shaftigf'or rotation independently thereof, a :nate clutch to vcouple etch rum to' the, shaft,

and s brake' to control: anim when critters is' disengaged; Y

Sensitivity oteonffrol eregessentiei requirements of Winches-ss these feetors 'permit 'the te be @moet risk: of eameg'e' to isorte meissie :me the clismces of able to sieve" the 1gii-fflt becomes fouled onlne-ocean bottom. 'k

'Trie' emoties in wineries prior'tomymvention were of the cone type'. 'While that type of'ol-itch' permitted the wir-ich equipmentftobe relatively compact; cone clut'ces'live afi hereiit tend# eiiey te stiele when'f-eneeg'ed; makingfsensitivity of eoritrel ease offoeretioilflmpessiblerer venrollees of the mechanical dvant'ageeforded .bythe clutch opertingmechanlsm. tende 'arid ease or "opeitien eoliens-i1 (ci. :si-.iso

t proxi'x'ntyto ,eachother that 4the operator may f control' the winch brake and the clutch; without thenecessity'oi movng'hspositioii orhaving vto stretch` to reaclji tle'brake ory the clutch o pf. f

Wincl mechanism iri accordance 'wthrriy iri- Y v enton'are'effctv because-it' makes possiblel a,

simple-arid durable enclosed' clutch coristructio 1o.l The-clamping Clutch elemelitjs' s'l'idably sup- Y ported bythe clutchelemft established by 011e end of, the'. drum and the clutch engaging pres- 1 sres dvelopedlbr 'thecanisj ifs exertedffagafiiist' the cl'amng' chitqli elerr't in the zone lof itsV lsl'd'ible Wjh-this4 construction eltlier the intermediate chitcili elemento; the druni may ency to stick is 'ggrevatedfby the' fact that beer-e' l ing wear increases the difllcuity or engaging and 'drum then becomes a factor'de'termiing'the proper engagement 'that frequently resul-tsm iiiy I Yprovide v ments is keyed; heb is eetiieted'by compact linkage 'te provide adequate. mechanical ritiene r tage in engaging, the cliit'o'h.- Y

With Winches in aceordaiiee with lmy inveritloii;

the flat faced clutch elements l-eiosltive in their coactlonyrega-rdless of' bearing weer, en-A suring long life, `and as the' clii'tcli'liings are made in sections,` repair and sericeais inode eas and maybe readily acoompllslie'd t Sea. l l

ixivieiitioii'isconcerned 'with novel oii'itoh'y l end drum.' c onstifution, ,in Winches .that may otherwise be oonlveiitoneiLfI have sli'cwr'i'infthe accompanying' drawing onlysuiiicienjt structure to illustra i en embodnnemor my invention and permit its ovelfeatliresand' advantges t o 'l o e readily gpbreeietted; Irithedrewingt Fie. 1 is a fragmentary view of@ winch Aslimying vin section the clutch construction. 2 iS a Snihirvew ofiemodl'd formof clutch actuating .lllih211215131;find'Y Fig, 3 is a fragmentary vertical section showingan'fent View of the eotueting mechegnism of'` 'Ihedrye shaft f carries conventionally a pairl 4 i of independent rofateh'le drums v2, of.4 which only; one'is shown, and'isjjoiirnaglled iriabearing 3 carried byeV support 4 adiacentieachend Ofthle Winch. .One end, 112mg@ 5 0? thefdrum'? presents an. 'annular Shoulder andfrigdly Supports, an

clutch element.

In accordance with my inventioii fari annuler shell 8' and e ring 9 ere'welded to the plete 1; Ihe shell 8 establishes atlrui for conventional brake mechanism, 'not s howrtfend alsoserves' to house the clutch. I`form the plate 1 and and the ring' 9 with apluralty of pairs of holesto recoil/fe bolts I0 slidably supporting an annular -platte H constituting a secohi flat/faced cltch element.

The apertures in' thela'te l aire of'su'fcient 'size to receive the adjusting nuts oir-thev bolts 'Hl 1 which seetfegaiiistthe ring 9,-so that; while they A further advantage of'my Vinvention is that it enables'the brakoactuatlng. means" andthe Y clutch actuating means-te be located 'in are accessible for adjustment; 'they don'olt intere ieiewiilitne amm z'. Ymtemieeieieeaoipoi'fof1 bolts, me ring l' and 'the 'clutch element-,tif are recessed to support a spring `I2 normallyholding the clutchclementsl and H' in. aposition wherein' meelezen is diseng1tged..-

annular plete i epnstimtine e first fiat :fated A hub I3 is keyed to the shaft' I and includes a fiat faced plate I4 constitutinga third clutch element supported intermediatethe clutch elements I and II. For convenience in assembling and servicing the clutch, I formthe'hfub I3 and plate l flanged as at I5 to receive clamping'bolts 'IIiv The ends of each pair of bolts I0 pivotally support a cam I'I engageable with the plate II'. The ends of the cams I'I are connected toafhubf I8 slidable on the shaft I bylinls I9. .Thehllb vIB carries an independently rotatablegjring;20", and preferably both the hub I8 a'nd theringQZU u are formed of sections clamped;togeth'er.v

The support 4 is spaced fromthe drun'f` Zusubstantially the distance required to. slide the hub IB into and out of a position wherein the clutch..

elements are clamped togetherand ont I mount an adjustable fulcrum 2I for one endfof the.

shifter Alever 22` formed vwithslots 23 to receive pins 24 carried bythe ringf. A second lever 25 pivote'd tothe support'il is connected to the other' en d ofthe lever 22Hby a link .2,6 to 'establish a toggle for actuating the hub I3 ata pre-r` position to prevent accidental disengagement,

' The use. offrny, clutchoperatingfrnechanism.

is of advantage in that thecams permit the, ,shiftingof the hub' I8 to'effect clutch'engagement at a substantialmechanical advantage and the clutch tobe locked' Vwhen' engaged. `VShile' the hub ,I8` isv actuated rby lnkageto'establishpositive and sensitivev control of the operation'of the Y clutch, there is "no"reactive` pressureto cause wear on the' hub I Sand clutch is engaged@ y A The levers -22 and 25 are pivotally connected to the support fon,oppositef'sid'es of the shaftA I and `their radial distancefrom the-shaft I` is less than the radius of thebrakedrum, While the brake drum 8 houses the Vclutch elements, I also provide anannular guard 29; carried' by the ldrum 8 to shield all the revolving parts. Alwinch,' in accordance with my invention, Ymay bereadily assembled and serviced. vAs the nuts on'the bolts. I!! are. located on the inner surface of the plate .l adjacent the periphery thereof, theyA may be easilyY removed to permit the bolt I0 to be Withdrawn. With the actuating mechanismin its inoperative position, the plate I I may begrnoved rearwardly toa `position Where it is accessible. Preferably, the lguard `2`9i`s first removed'. `By removingthe bolts I6, the sections which make up theV clutcnmember; I4 may be removed after the plate' II has been moved awa-y fl'lTl it. t *I i f* i Y j In Figs. 2 and 3.1 have shown 'a modifiedhform of clutchV actuating` mechanism which the base 30 andthe bracket 3l ,onthe support 4 supthe "ring 20' While` jthe I4 Yin sectionsj VThe "hub section'sjare engagement results byfclamping the plates TI and II against the plate I4. Y

If desired, the drum 2 may be mounted on the shaft I for independent rotation but held against sliding movement in which event the plate I4 is slidably. 'Supported and"driv`enby-itshub I3 as shown in' my copending application Serial No. 376,051,1iled January 2'7,A 1941, now Patent No.

2,286,862, dated -June 16, 1942. :1Q

r V Itvvlllbe appreciated that Winches in accord- "ance'withmy invention are Well'adapted for jmarine use in" that the clutch and its operating 'Qmechani`sm` are?A sensitive and easily actuated. lec'ausefof the* linkage and the use of the brake drumjas'a housing for the clutch, Winches in accordance with my invention are suitably compact and may be easilycontrolled and serviced.

.by LettersPatent is:

1 'Winch mechanism comprising a shaft, a`

drum'supported by said shaftvfor rotation independently thereof, one end'offsaid drum constitutin'g one clutch lelement and including an annular flange constitutinga brake drum, a second member splined to said shaft, said 'second memberl comprising "a pair of. complemental sections each. including a hubestablishing portion and a disc establishing portion, -means attachingjsaid hub 'portions to each other about said shaft to assemblesaid' sections so ythat said disc establishing portions present a second clutch.v element housed-by said brake drum,-a.third clutch element, meansl detachably carried by said drum slidably supporting said third clutchelement intermediate said assembledhub portions and said brake drum forrv .axial movement, one of said first two named clutch-elements being lslidable relaf tive .to-each other, Vandoperator controlled means connected to said` mea-ns supporting said thirdV element to effect engagement of -said clutchelements, said operator controlled meanshaving an inoperative positionfwherein on Adetachment of said. third element supporting `means said third 'element may be positionedV tol-permitY said as sembledsections to vbegdisconnected from eachv other and removed from said shaft.

2. lll/'inchmechanismasV in claimr part of ,thefoperator'controlled means. rotates with the shaft when the .clutchelements are in engagement and an; annular,guard is detachably securedto the brake drum tov house this part of the operator controlled means. ,143. VWinch mechanism comprising a shaft, la drumsupported by said shaftforfrotation Lindependently thereof, one end of said drum constitutingpne clutch element and includingA an anport a shaft 32 at right angles to the shaft I.

I and the plate I4 is fixed thereon so that'clutch Y nul'arflange constituting a brake drum, a second member splined Ito-said shaft, said second member comprising la pair of complementari sections eachv including Va hub. establishingportion and a disclestablishing-rportion, means attaching said hub portions to each other about saidshaftto assemble saidsections -sothat'said disc establishing kportions present a second clutch element, a .third clutch element, means detachably carried by said drum slidably supporting said third clutchelement for axial movement, one of said first tivo named clutch elements being slidable relativeto eachY other, and operator controlled means connected toV saidY means Vsupporting said Y third elementto effectl engagement of'said clutch elements,v said;A operator. controlledmeans having an? inoperative. position wherein on detachment of said third;element supportingv means; said third elementfmay be' positioned to permitlsai'd i; in .which I Winch drum supported by said shaft forrotation f independently thereof, one end of said drumV assembled sections to be disconnected from each other and removed from said shaft.

4. Winch 'mechanism comprising a shaft, a

Winch drum supported by said shaft for rotation 'independently thereof, the outer surface of one endof said drum presenting a hat-faced clutch Vsurface establishing a :lirst clutch member, a

second clutch member splined to said shaft, a third clutch'member, means extending through said drum and slidably supporting said third clutch member, detachable means to lock said supporting means to said drum end, said detachv having apertures therethrough` adjacent its pe- Y riphery, the outer surface of said drum presenting va let-faced clutch Asurface-defining `a rst clutch member, an annular member attached to f said' at-faced surface,A said annular member having apertured therethrough smaller than but able means being exposed on the inner surface of said drum end, one of said first two named clutch members being slidable relative'to the other land operator controlled means connected valined with the apertures insaiddrum end, a

second clutch member splned to said shaft,.a third clutch member, 'a pluralityr ofv means Vslid-- ably supporting Said third yclutch member, each of said means ncludinga threaded end extend-r ing through said alined apertures and a nut to said supporting means for engagement with Y said third clutch member to effect, When actuated,'engagement of said clutch members.

5. The Winch mechanism of claim 4 in which 20 the Ydetachable means are oountersunk with respect to the said inner surfacerof said drum'.

6. Winch mechanism comprising a shaft, a

threaded on each of said threaded ends, said'A nuts vfitting Within said apertures insaid drum end and being seated against said annular mem` ber, one of said rst twon'amed clutch mem- YDONALD B. LIVINGSTGN. 

